Platinum 520 Fanless

The Seasonic Fanless power supplies are defined by their complete silence, which rightfully makes them the most sought after units on the market today. Building on 80 PLUS Platinum® level of rating and with the use of high-grade components, these fanless power supplies are also extremely efficient. For the fact that they run cool and silent, they are perfect solutions for Home Theater PC (HTPC) or any other application where “silence is golden”. The Seasonic Platinum Series Fanless power supplies are tailored to satisfy the most demanding users who search for the ultimate quiet solution which is matched by a simple, elegant look.

80 PLUS®Platinum

The higher the level of efficiency of the power supply, the less power gets wasted in the form of excess heat . The 80 PLUS® Platinum certification guarantees greater than 90 %, 92 % and 89 % efficiency at 20 %, 50 % and 100 % operating loads, respectively. The Seasonic Platinum Series represents the highest level of technology and efficiency achievement of Sea Sonic during its 40 years of commitment to engineering excellence.

Fanless

Cooling fans inside the power supply are replaced by passive cooling based on heat dissipation. Silent operation does not only provide a more pleasant working environment but it also results in less power consumption and lower utility bills.

105 °C Japanese Capacitor

7 Years Warranty

Our commitment to superior Seasonic quality.

DC to DC Converter Design

The step down DC to DC converter design allows the power supply to be able to serve system components with various voltage needs. Not only is it a flexible, clean voltage conversion solution but it also maximizes the 12 V DC rail output, delivers superior dynamic response and , ultimately, provides for greater system stability.

Fully Modular Cables

In Sea Sonic’s patented design feature full modularity comes hand-in-hand with the extensive use of SMD technology to increase the overall performance and reliability of this power supply. The simple and inventive layout scheme helps to attain unsurpassed quality and performance, where efficiency is further enhanced by minimized line resistance, reduced voltage drop and lower impedance. Reduced component count and better space utilization facilitate optimal air flow inside the case and promote heat dissipation, proper cooling and ultimately longer product life.

Specifications are subject to change without prior notice.
Note: Since the beginning of 2015, Seasonic has implemented changes in its retail box design and modular cables are now packed in a black cardboard box.

Platinum 520 Fanless

AC Input

Voltage: 100 V - 240 V

Current: 7 - 4 A

Frequency: 50 Hz - 60 Hz

DC Output

Rail

+3.3 V

+5 V

+12 V

-12 V

+5 VSB

Maximum Power

20 A

20 A

43 A

0.5 A

2.5 A

100 W

516 W

6 W

12.5 W

Total continuous power

520 W

Platinum 520 Fanless Technical Specifications

80PLUS®

Platinum

Form Factor

Intel ATX 12 V

Dimensions

150 mm (W) x 160 mm (L) x 86 mm (H)

Fan Information

Fan Size

NA

Fan Control

NA

Fan Bearing

NA

Life Expectancy

NA

Cable Information

Modularity

Fully Modular

Cable type

Flat black cables

Electrical Features

Operating Temperature

40 °C

MTBF @ 25 °C, excl. fan

150,000 hours

AC Input

Full Range

Protection

OPP, OVP, UVP, OCP, OTP, SCP

Safety and Environmental

Safety and EMC

cTUVus, TUV, C-tick, Gost-R, CB , BSMI, CCC, CE, FCC,

Environmental Compliance

Energy Star, RoHS, WEEE, ErP Lot 6, REACH

Warranty

7 Years

Packaging information

Units per carton

4

Individual carton size

330 (L) x 130 (W) x 195 (H) mm

Shipping carton size

545 (L) x 215 (W) x 360 (H) mm

Specifications are subject to change without prior notice.

Connector

Connector Count

Lengths

1

610 mm - modular

1

650 mm - modular

4

550 + 100 mm - modular
550 + 100 mm - modular

6

400 + 120 + 120 + 120 mm - modular
300 + 120 mm - modular

5

400 + 120 + 120 mm
300 + 120 mm

1

101 mm

Specifications are subject to change without prior notice.

TechPowerUp | Editor’s choice

November 14, 2012

“This is not the first time that a Seasonic product manages to amaze me and it surely won’t be the last! The new fanless Platinum 520 W unit is a great performer with ultra-stable rails that deliver very clean outputs. Your choices are pretty limited if you are looking for a fanless PSU, especially if you seek a Platinum efficiency one. The Seasonic SS-520FL’s platform easily allows this unit to confront and eclipse its competition by providing top performance for a price that beats every other fanless Platinum PSU out there, which makes its purchase a no-brainer.”

eTeknix.com | Editor’s Choice

September 23, 2014

“It’s silent, it performs great and it looks fantastic ….so there are no marks for guessing it is made by Seasonic! If you’re in the market for a high quality fanless power supply then Seasonic have got you covered with their Platinum 520.http://www.eteknix.com/seasonic-platinum-fanless-520w-modular-power-supply-review/“